/Engine/Source/Runtime/Slate/Public/Widgets/Input/SCheckBox.h
Called after a key is released when this widget has focus
Returns whether the event was handled, along with other possible actions
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnKeyUp ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FKeyEvent](API\Runtime\SlateCore\Input\FKeyEvent) & InKeyEvent )